问题描述：
英语介词to和for的用法和区别
The present international economi and trade rules are extremely unfair to developing countries.这个句子里的to可以用for代替吗?如果说不能,那是为什么?
The present international economi and trade rules are extremely unfair to developing countries.这个句子里的to可以用for代替吗?如果说不能,那是为什么?
问题解答：
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